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dc.contributor.authorColom Serra, Mateu ORCID
dc.contributor.authorBedoya Pérez, Adrián Felipe
dc.contributor.authorMendioroz Astigarraga, María Aránzazu ORCID
dc.contributor.authorSalazar Hernández, Agustín ORCID
dc.date.accessioned2023-11-21T15:38:50Z
dc.date.available2023-11-21T15:38:50Z
dc.date.issued2020-01-21
dc.identifier.citationInternational Journal of Thermal Sciences 151 (2020) // Article ID 106277es_ES
dc.identifier.issn1290-0729
dc.identifier.urihttp://hdl.handle.net/10810/63091
dc.description.abstractIn this work we deal with samples that move at constant speed and are illuminated by a modulated and focused laser beam. We have obtained a general expression for the surface temperature of these moving samples: it is valid not only for opaque and thermally thick materials, but also for thermally thin and semitransparent samples. Moreover, heat losses by convection and radiation are taken into account in the model. Numerical calculations indicate that the temperature (amplitude and phase) profiles in the directions parallel and perpendicular to the sample motion are straight lines with respect to the distance to the laser spot. The slopes of these straight lines depend on sample speed, modulation frequency and in-plane thermal diffusivity of the sample. Provided the two first experimental parameters are known, the in-plane thermal diffusivity can be retrieved in a simple manner. Measurements performed on materials covering a wide range of thermal diffusivity values, from insulators to good thermal conductors, confirm the validity of these linear methods.es_ES
dc.description.sponsorshipThis work has been supported by Ministerio de Economía y Competitividad (DPI2016-77719-R, AEI/FEDER, UE), by Universidad del País Vasco UPV/EHU (GIU16/33) and by Gobierno Vasco (PIBA2018/15). A. Bedoya greatly thanks the support of CONACyT through the Beca Mixta Program for a research stay at the UPV/EHU.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/DPI2016-77719-R,es_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectinfrared thermographyes_ES
dc.subjectlock-in thermographyes_ES
dc.subjectthermal diffusivityes_ES
dc.subjectphotothermal techniqueses_ES
dc.titleMeasuring the in-plane thermal diffusivity of moving samples using laser spot lock-in thermographyes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holder© 2020 Elsevier under CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)es_ES
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1290072919312360es_ES
dc.identifier.doi10.1016/j.ijthermalsci.2020.106277
dc.departamentoesFísica aplicada Ies_ES
dc.departamentoeuFisika aplikatua Ies_ES


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© 2020 Elsevier under CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Except where otherwise noted, this item's license is described as © 2020 Elsevier under CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)